Short abstract from the book: The pochard breeds mainly in eastern parts of the country.
In Denmark the first pochard was ringed in 1935; most
were ringed in the 1960s, mainly in Nakskov Fjord, on
Amager and in Vejlerne. A few of the recovered birds were
ringed as ducklings and some as adults during the breeding
season, but the majority are passage migrants ringed in
April.
About 75 % of the Danish breeding population leaves
Denmark, heading SW to winter, mainly in Great Britain
and northern France. The first birds are recovered south of
Denmark in September but most not until November.
The recoveries show that many of the passage migrants seen
in Denmark come from the Baltic countries and Russia and
to a lesser extent Sweden and Finland. Some of these birds
spend the winter in Denmark, while others migrate further
SW. The mean position of young pochards in their first winter
is southwest of that of older birds.
In spring there are still many recoveries south of Denmark
in March, but in April the majority seem to have returned
to Denmark. In late April and in May pochards have been
recovered in central Russia and northern Kazakhstan. The
majority of the birds recovered east of Denmark were males.
The major known causes of death are hunting and drowning
in fishing nets.
Read more about the species in the chapter from The Danish Bird Migration Atlashere
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